In a study of over 15,000 teens, 62% of boys and 55% of
girls consumed sugar-sweetened soda on the previous
day. (source: nalini ranjit et al. “dietary and activity correlates of sugar-
sweetened beverage consumption among adolescents," pediatrics published
online sep. 27, 2010.) when asked to compare the boys'
percentage with the girls' percentage, two students gave
the answers below. show how each student computed
the percentage.
alma: the boys' percentage is 7% bigger than the girls'.
bill: the boys' percentage is about 113% of the girls'.